Messages in this thread Patch in this message | | | From | Vitaly Kuznetsov <> | Subject | [PATCH v2 08/16] hyper-v: trace vmbus_onversion_response() | Date | Fri, 29 Sep 2017 15:25:54 +0200 |
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Add tracepoint to CHANNELMSG_VERSION_RESPONSE handler.
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> --- drivers/hv/channel_mgmt.c | 3 +++ drivers/hv/hv_trace.h | 11 +++++++++++ 2 files changed, 14 insertions(+)
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c index 1ff2cc064850..a9a1fc1424c6 100644 --- a/drivers/hv/channel_mgmt.c +++ b/drivers/hv/channel_mgmt.c @@ -1121,6 +1121,9 @@ static void vmbus_onversion_response( unsigned long flags; version_response = (struct vmbus_channel_version_response *)hdr; + + trace_vmbus_onversion_response(version_response); + spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags); list_for_each_entry(msginfo, &vmbus_connection.chn_msg_list, diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h index 0c50527c815c..e99db56d27b7 100644 --- a/drivers/hv/hv_trace.h +++ b/drivers/hv/hv_trace.h @@ -111,6 +111,17 @@ TRACE_EVENT(vmbus_ongpadl_torndown, TP_printk("gpadl 0x%x", __entry->gpadl) ); +TRACE_EVENT(vmbus_onversion_response, + TP_PROTO(const struct vmbus_channel_version_response *response), + TP_ARGS(response), + TP_STRUCT__entry( + __field(u8, ver) + ), + TP_fast_assign(__entry->ver = response->version_supported; + ), + TP_printk("version_supported %d", __entry->ver) + ); + #undef TRACE_INCLUDE_PATH #define TRACE_INCLUDE_PATH . #undef TRACE_INCLUDE_FILE -- 2.13.5
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